- Anderson High School Symphony Orchestra
- Andor Foldes
- Andras Adorjan
- Andre Dussollier
- Andre Vandernoot
- Andrea Bacchetti
- Andrea Battistoni
- Andrea Bocelli
- Andrea Bricchi
- Andrea Ceccomori
- Andrea Iovino
- Andrea Kauten
- Andrea Lam
- Andrea Licata
- Andrea Toffanello
- Andreas Brantelid
- Andreas Delfs
- Andreas Frölich
- Andreas Haefliger
- Andreas Wolter
- Andrei Gavrilov
- Andrei Golovin
- Andrei Ionita
- Andrei Mapovic Orchestra
- Andrej Bielow
- Andrej Hoteev
- Andreu d.Men
- Andreu Jacob
- Andrew Achilles DiMestico
- Andrew Boysen, Jr.
- Andrew Kennedy
- Andrew Litton
- Andrew Lloyd Webber
- Andrew Macleod
- Andrew Manze
- Andrew Morley
- Andrew P. Roberts
- Andrew Pearce
- Andrew Swarbrick
- Andrew von Oeyen
- Andrey Baranov
- Andris Nelsons
- Android Orchestra
- Andrzej Godek
- Andrzej Wojciechowski
- András Schiff
- André Cluytens
- André Gertler
- André Jolivet
- André Kostelanetz
- André Kostelanetz Orchestra
- André Navarra
- André Paixão
- André Popp
- André Previn
- André Rabot
- André Rieu
- André Watts
- Andrés Orozco-Estrada
- Andrés Segovia
- Andy Miles
- Angel Chacón
- Angela Denoke
- Angela Gheorghiu
- Angela Hewitt
- Angelina Réaux
- Angie Dixon
- Angéline Pondepeyre
- Anhaltische Philharmonie Dessau
- Anima Eterna
- Anima Eterna Brugge
- Anima Eterna Orchestra
- Anima Musicæ Chamber Orchestra
- Anima Musicæ Kamarazenekar
- Anis Boyer
- Aniyeol
- Anja Harteros
- Anjana Rajagopalan
- Ann Arbor Clague Eighth Grade String Orchestra
- Ann Arbor Huron High School Symphony Orchestra
- Anna Caterina Antonacci
- Anna Gorbachyova-Ogilvie
- Anna Gourari
- Anna Ji Eun Lee
- Anna Kozlov
- Anna Larsson
- Anna Lelkes
- Anna Lena Leyfeldt
- Anna Moffo
- Anna Shelest
- Anna Sutyagina
- Anna Vinnitskaya
- Anne Akiko Meyers
- Anne Gjevang
- Anne Sofie von Otter
- Anne Utagawa
- Anne-Margrethe Eikaas
- Anne-Marie McDermott
- Anne-Sophie Mutter
- Annegret Bernstein
- Annelien van Wauwe
- Annelle K. Gregory
- Annerose Schmidt
- Annie Fischer
- Annunzio Paolo Mantovani
- Annunzio Paolo Mantovani Orchestra
- Anny Schlemm
- Anoushirvan Rohani
- Anselmo Koch
- Anssi Karttunen
- Antal Doráti
- Anthony Berlin
- Anthony Bramall
- Anthony Camden
- Anthony Collins
- Anthony Halstead
- Anthony Marwood
- Anthony McGill
- Anthony Rolfe Johnson
- Anthony Spain
- Anthony Wahl
- Anthony Weeden
- Antje Weithaas
- Antoine Binant
- Anton Nanut
- Anton Paulik
- Anton Sorokow
- Anton Steck
- Antonella Ruggiero
- Antonello Tosto
- Antoni Ros-Marbà
- Antoni Schonken
- Antoni Wit
- Antonin Jemelik
- Antonin Mège
- Antonina Styczeń
- Antonio de Almeida
- Antonio Eros Negri
- Antonio Guarnieri
- Antonio Janigro
- Antonio Lysy
- Antonio Meneses
- Antonio Onorato
- Antonio Pappano
- Antonio Pompa-Baldi
- Antonio Victorino D'Almeida
- Antony Walker
- Antonín Pergler
- Antwerp Symphony Orchestra
- Apollo Chamber Orchestra
- Apple
- Aqwelss
- Ara Malikian
- Arabella Steinbacher
- Aradia Ensemble
- Aram Khachaturian
- Aram Zero
- Arash Safaian
- Arcaadia
- Arcana
- Arcanabyss
- Arcangelo
- Arco Baleno Ensemble
- ARCO Chamber Orchestra
- Arctic Philharmonic
- Arctic Philharmonic Orchestra
- Arditti String Quartet
- Areteal
- Argovia Philharmonic
- Ari Rasilainen
- Ariadne Daskalakis
- Aribert Reimann
- Arion Orchestre Baroque
- Aris Antoniades
- Arjumann
- Arkady Sevidov
- Arkhanix
- Armand Bernard
- Armand Bernard Orchestra
- Armando Antonelli
- Armenian State Symphony Orchestra
- Armonia Atenea
- Armonie Chamber Orchestra
- Armonie Symphony Orchestra
- Arno Erfurth
- Arnold Schönberg Choir
- Aron Leijendeckers
- Aron van Selm
- Arsen Grigoryan
- Art Ensemble of the Ministry of Defense
- Arthur Balsam
- Arthur Davidson
- Arthur Fiedler
- Arthur Goldschmidt
- Arthur Grumiaux
- Arthur Hannes
- Arthur Pranno
- Arthur Rodzinski
- Arthur Rubinstein
- Arthur Schoonderwoerd
- Arthur Winograd
- Artur Balsam
- Artur Kaganovskiy
- Artur Rodzinski
- Artur Rother
- Artur Schnabel
- Arturo Benedetti Michelangeli
- Arturo Oliva
- Arturo Sacchetti
- Arturo Tamayo
- Arturo Toscanini
- Arun Ghosh
- Arvo Volmer
- Asher Fisch
- Ashif N
- Ashley Simons
- Ashton Gleckman
- Asier Polo
- Asko Ensemble
- Asociación Filarmónica de Alemania
- Assaf Levitin
- Assaff Weisman
- Association des Concerts de Chambre de Paris
- Association symphonique de Paris
- Asterixo
- Astrig Siranossian
- Asya Fateyeva
- Atakan Ilgazdag
- Atalanta Fugiens Orchestra
- Ataulfo Argenta
- Ateneu Musical de Cullera
- Atero
- Athens Philharmonia Orchestra
- Athens State Orchestra
- Atholton High School String Orchestra
- AtinPiano
- Atlanta Symphony Orchestra
- Atlanta Symphony Orchestra Chorus
- Atlantic Movie Orchestra
- Atlas Rhoads